Oscillating engine.



J. BERG-EISEN.

OSGILLATING ENGINE. APPLICATION FILED sBPT.11, 1913.

1,125,639; Patented .131119, 1915.

V l uw f JOHN IBERIG;ESEN,v OF NEW YORK, N. Y.

oscILLA'rING ENGINE.

Specification o f LettersjPatent.

Patented J an. 19, 1915.:

Application filed September 11, 1913. Serial No. 789,251.

To all whom it may concern:

Be it known that I, JOHN BERGESEN, a citizen of the United States, and a resident of the city of New York, boroughr ofBrooklyn, -in the county of Kings and State of New York, have invented a new and Improved Oscillating Engine, of which the following is a full,clear, and exact description.

rlhis invention relates to improvements in engines, and particularly engines of the oscillating piston type, wherein the pistons are designed to oscillate.

An object of the invention is to provide an improved structure which will use a minimum volume of pressure for providing a maximum power and also a maximum movement of the piston. j

Another object -of the invention is to provide an improved valve mechanism for con,

trolling the inlet and outlet to the cylinder, so that the piston may be balanced or may be quicklyT moved from one position to the other.

In carrying out the objects of the invention a cylindrical structure is provided, arranged with preferably a single abutment. In this ,cylinder is arranged a piston and a shaft connected therewith which contains the controlling valve for turning on and off the pressure. In mounting the machine the cylinder is rigidly mounted in place and the piston and shaft caused to rotate, or, rather,

oscillate.

In the accompanying drawings-Figure 1 is a longitudinal vertical section through an engine-embodying the invention; Fig. 2 is a section through Fig. 1, on the line 2 2; Fig. 3 is a detail perspective view of the valve `used in the structure shown in Fig. 1;- and Fig. 4 is a detail View of the valve and valve controlling member associated, together with part of the piston shaft.

Referring to the accompanying drawings by numeral, 1 indicates a housing or cylin-` der which is provided with an abutment 2. Projecting through the cylinder 1 is a shaft 3 which is connected with any suitable support, which support holds the same against movement so that the cylinder will oscillate or rotate partially around the shaft when pressure has been admitted thereto. Rigidly connected or formed integrally with the shaft 3 is an oscillating wing piston Il which is designed to swing from one side of the abutment 2 to the other and thereby give a long stroke. The shaft 3 is formed with an .12 and 13.

enlargedbore 5 and a reduced. exhaust bore 6, the enlarged bore 5 acting asa pressure chest.' Radiating from the enlarged bore 5 are ports 7 and 8 which are normally closed by a valve 9. The valve 9, is formed with abase or bearing plate 10 resting against a shoulder 11, to which it is secured by a screw 29-see Fig. 1. The valve has an upstandiig portion in which are inlet ports Also arranged in the valve are exhaust ports 14 and 15 which merge into the vertical passageway 16 which registers with the upper part of the exhaust bore 6. The upper part of the valve 9 is formed with a squared portion 17 designed to` be engaged by a substantially .U-shaped the shaft 19 holds the valve in place rather 75 loosely, and the pressure in the bore 5 acts on the valve so as to tightly seat the same. It will be observed that the various ports in the valve 9 are arranged so that when steam is entering the cylinder 1 on one side ofthe piston 4, the opposite side is exhausted, and viceversa. It will also be observed that, when the valve is turned for allowing the pressure to enter the cylinder 1, the ports are uncovered, and as soon as the cylinder has moved a suilicient distance the same will automatically cover the various ports. The valve 9 is arranged with a solid covering the various ports when it is not desired to move the engine, but to hold the same stationary. vWhen the solid portions or sections 20, 21 cover the ports 7 and 8, the

engine is in its normal position at rest, and

moves automatically to this position whenever the valve 9 is moved.

In loperating the engine, suitable cables 22` are connected to the piston by the cup-shaped member 26 so that, when the sameis oscillated, these cables will be moved, these cables being connected with anysitable device to be operated, as, for instance, the rudder of a L Ship. The valve shaft 1:9 has connected therewith a gear wheel 25 which may be a short", hoist, operation of sliding doors,

` portion 20 and also a solid portion 21 for of the lifts of 'all kinds, and various other devices which require a back and forth movement ower member.

Havlng thus described my invention, I claim as new and desire to secure by Letters Patent:

In an oscillating engine, the combination of a stationary cylinder having an interior radial abutment, a hollow shaft Within and concentric with the cylinder` and provided with a Winged piston and an enlarged pressure chamber Whose base forms a shoulder, said chamber having outlet ports 7 and 8 on opposite sides of the piston, a valve having a vertical passage and seated on the aforesaid shoulder and valso constructed With dagonally opposite inlet ports and similarly disposed exhaust ports and having solid portions 20 and 21, each intervening an inlet and an exhaust port, and means for moving said valve on its pivot, as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

' y JOHN BERGESEN.

Witnesses:

I. R. ROWLAND, JAMES BURNS. 

